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Monday, 15 August 2011

how to install windowsxp

Aoa
every body
if u want to install freessh copy of windows xp
then u firest get windows xp cd  on shop after it u insert cd in to cd Room drive:
after this option may be windows not bottt
error:1
not correct your cd or cd rom
error 2
u donot check in MSDOS MENU BOOT MENUE OPTION
U FIRST CHANGE FIRST BOOT DEVICE
WHEN U CLICK ON BOOT SEQUENCE OPTION
FOUR OPTION SHOW
FIRST BOOT DEVICE , 2ND BOOT DEVICE,3RD BOOT DEVICE ,4TH BOOT DEVICE
WHEN U START INSTALL WINDOW XP ON SYSTEM U CHOOST FIRST BOOT DEVICE CDROOM SECONDE BOOT DEVICE HARDDISK AND 3RD BHOOT DEVICE FLOPY DISK
AFTER SETTING U PRESS F10 BUTTON ON THE KEYBOORD AND OPTION WILL BE APPEAR YES OR NO SAVE U CLICK ON YES BUTOON
AFTER THIS COMPUTER RESTART
WHEN COMPUTER START BOOTING CDROOM SHOOOW THIS  CDR00M........
WHE HE BEGIN ENTER THE BUTTON WINDOWS INSTALLATION BEGING
AFTERE THIS MAY HARDWARD CONFIGRATION CHECKING 
ONE OPTIION APPEAR U INSTALL FRESS COPY WINDOWS XP AND 2ND OPION APPEAR U REPAIR THE WINDOWS XP
SO WE ARE CHOOSE FIRST OPTION INSTALL FRESS COPY
ENTER BUTTON
AFTER THIS NEW WINDOW WILL BE APPEAR  WHICH U INSTALL WINDOWS ON DRIVE
C: DRIVER D: DRIVE :E DRIVE
U CHOOSE C DRIVE

ENTER  NEWS WILL APPEAR AGAIN THIS TIME HE ASKE FORMAT PARRTIION ON C DRIVE
U FORMAT C DRIVE ON FAT32 OR NTFS IT IS DEPEND ON U
OK
AFTER THISS COPY ALL FILE IN C DRIVE
COPY ALL FILE FINISH COMPUTER RESTARE AUTOMATICALLY
AFATRE THIS COMPUTER TAKE 39 MINTUES FOR INSTLALLION COMPLETE
OK
THIS IS THE COMPLETE WINDOWS INSTALLATION

Sunday, 14 August 2011

Network topology


nA topology is a way of “laying out” the network. Topologies can be either physical or logical.
nPhysical topologies describe how the cables are run.
nLogical topologies describe how the network messages travel
nBus (can be both logical and physical)
nStar (physical only)
nRing (can be both logical and physical)
nMesh (can be both logical and physical)




Bus A bus is the simplest physical topology. It consists of a single cable that runs to every workstation
nThis topology uses the least amount of cabling, but also covers the shortest amount of distance.
nEach computer shares the same data and address path. With a logical bus topology, messages pass through the trunk, and each workstation checks to see if the message is addressed to itself. If the address of the message matches the workstation’s address, the network adapter copies the message to the card’s on-board memory.
n

Client and Server computer role in networking


nServer computer is a core component of the network, providing a link to the resources necessary to perform any task.
nA server computer provides a link to the resources necessary to perform any task.
nThe link it provides could be to a resource existing on the server itself or a resource on a client computer.
nClient computers normally request and receive information over the network client. Client computers also depends primarily on the central server for processing activities 
Peer-to peer network
A peer-to-peer network is a network where the computers act as both workstations and servers. 
great for small, simple, and inexpensive networks. 
In a strict peer-to-peer networking setup, every computer is an equal, a peer in the network. 
Each machine can have resources that are shared with any other machine. 
nThere is no assigned role for any particular device, and each of the devices usually runs similar software. Any device can and will send requests to
any other. 


The Local Network (LAN)





 

Fundamental Network Classifications


Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network)
Network in a City is call MAN (Metropolitan Area Network)
Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)
Fundamental Network Classifications
Local Area Networks (LANs):
nA local area network (LAN) is a computer network covering a small geographic area, like a home, office, or group of buildings

Wide Area Networks (WANs):
nWide Area Network (WAN) is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries). Or, less formally, a network that uses routers and public communications links
nThe largest and most well-known example of a WAN is the Internet.
nWANs are used to connect LANs and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations
Metropolitan Area Network (MAN):
oA metropolitan area network (MAN) is a network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN)
obut smaller than the area covered by a wide area network (WAN).
oThe term is applied to the interconnection of networks in a city into a single larger network
oIt is also used to mean the interconnection of several local area networks by bridging them with backbone lines. The latter usage is also sometimes referred to as a campus network.



Advantages of networking


nConnectivity and Communication
nData Sharing
nHardware Sharing
nInternet Access
nInternet Access Sharing
nData Security and Management
nPerformance Enhancement and Balancing
nEntertainment
nNetwork Hardware, Software and Setup Costs
nHardware and Software Management and Administration Costs
nUndesirable Sharing
nIllegal or Undesirable Behavior
nData Security Concerns

Definitions (cont..)


A resource may be:
nA file
nA folder
nA printer
nA disk drive
nOr just about anything else that exists on a computer.
n  A network is simply a collection of computers or other hardware devices that are connected together, either physically or logically, using special hardware and software, to allow them to exchange information and cooperate.
n Networking is the term that describes the processes involved in designing, implementing, upgrading, managing and otherwise working with networks and network technologies.

Definitions computer network


1.1  Network Definition
nA network can be defined as two or more computers connected together in such a way that they can share resources.
n
nThe purpose of a network is to share resources.

computer networking


Objective:
nThe definitions of networking
nNetwork topology
nNetwork peripherals, hardware and software

windows 7 install throug usb

nEnsure that the storage device has no data stored on it that you want to keep because this procedure removes all existing data.
>>>Open an elevated command prompt and type diskpart.
>>>At the DISKPART> prompt, type list disk. Identify which disk connected to the computer represents the USB storage device.
>>At the DISKPART> prompt, type select disk X where X is the number of the disk that 
>>>you have identified as the USB storage device.
>>>At the DISKPART> prompt, type clean. When the disk is clean, type create partition primary.
nAt the DISKPART> prompt, type format fs=fat32 quick. When the format is completed type active and then exit.
nAfter you have completed these steps, copy all the files located on the Windows 7 installation DVD to the USB storage device.
nConfigure the BIOS computer on which you want to install Windows 7 to boot from the USB storage device. Attach the USB storage device and then reboot the computer to start installation.

how to install win7 through usb

Using a USB as an Installation source